Wave transmission lines and networks inventions 06/08

20080150649 - Coaxial metamaterial structure: A metamaterial device has a coaxial structure including rotational symmetry about a longitudinal axis of coaxial conductors. In a disclosed example, a series inductance portion has a relatively smaller circumferential dimension compared to another portion of a conductor. A series capacitance portion comprises an interruption in the conductor. A shunt... Agent: Carlson, Gaskey & Olds, P.c./alcatel-lucent

20080150650 - Integrated analog video system: A video driver includes a current-to-voltage converter circuit that converts an analog input current to a corresponding analog voltage. Active termination circuitry is configured to synthesize an output impedance at an output thereof that substantially matches a load impedance to which the output is coupled, the active termination circuitry buffering... Agent: Texas Instruments Incorporated

20080150651 - Spectral predictive switching device activation: A method of driving an array of switches comprising supplying the same drive signal to a first drive terminal of a plurality of the switches of an array and supplying second drive signals to a second drive terminal of each of the plurality of switches, the second drive signal supplied... Agent: Greenberg Traurig LLP (la)

20080150652 - Duplexer and communications equipment: A duplexer includes a piezoelectric substrate, a transmitting filter, and a receiving filter. A transmitting filter includes a ladder filter having a first resonator group which has one or more resonators in one or more series arms and one or more resonators in one or more parallel arms. A receiving... Agent: Bacon & Thomas, Pllc

20080150653 - Film bulk acoustic resonator and filter: A film bulk acoustic resonator includes a lower electrode that is formed on a void of a substrate or is formed so that a void is formed between the lower electrode and the substrate, a piezoelectric film that is formed on the lower electrode, an upper electrode that is formed... Agent: Arent Fox LLP

20080150654 - Serrated mems resonators: One embodiment of the present invention sets forth a serrated tooth actuator for driving MEMS resonator structures. The actuator includes a fixed drive electrode having a serrated tooth surface opposing a MEMS resonator arm also having a serrated tooth surface, where the MEMS resonator arm is configured to rotate towards... Agent: Patterson & Sheridan, L.l.p.

20080150655 - Serrated mems resonators: One embodiment of the present invention sets forth a serrated tooth actuator for driving MEMS resonator structures. The actuator includes a fixed drive electrode having a serrated tooth surface opposing a MEMS resonator arm also having a serrated tooth surface, where the MEMS resonator arm is configured to rotate towards... Agent: Patterson & Sheridan, L.l.p.

20080150656 - Serrated mems resonators: One embodiment of the present invention sets forth a serrated tooth actuator for driving MEMS resonator structures. The actuator includes a fixed drive electrode having a serrated tooth surface opposing a MEMS resonator arm also having a serrated tooth surface, where the MEMS resonator arm is configured to rotate towards... Agent: Patterson & Sheridan, L.l.p.

20080150657 - Tunable high impedance surface device: A tunable high impedance surface device (100) includes a conductive ground plane (105) and a plurality of conductive elements (110-114) electrically connected to the conductive ground plane (105). The device (100) also includes a plurality of capacitive elements (120-124) operable to vary a predetermined electromagnetic characteristic of the apparatus and... Agent: Motorola, Inc.

20080143459 - Arrangement, a magnetic resonance imaging system and a method of conducting a signal: The arrangement 10 according to the invention is suited for transmitting an informative signal S1, generated by suitable signal generator 1 at a first electrical site 7a to a second electrical site 7b. The first electrical site 7a is electrically connected to the second electrical site 7b by means of... Agent: Philips Intellectual Property & Standards

20080143460 - Attenuator and step attenuation device having the same: An attenuator for attenuating an input signal at a predetermined rate and a step attenuation device having the same are provided. The attenuator includes first to sixth impedance components. A terminal of the first impedance component is connected to an input signal. A terminal of the second impedance component is... Agent: Cantor Colburn, LLP

20080143455 - Dynamic power splitter: There is described a power splitter for directing electromagnetic power comprising: an input port for receiving the electromagnetic power; at least one dielectric element placed inside the power splitter; at least two output ports for outputting the power according to a splitting ratio, the at least two output ports placed... Agent: Ogilvy Renault LLP

20080143456 - Band combining filter: e

20080143457 - Fbar band pass filter, duplexer having the filter and methods for manufacturing the same: A duplexer including an FBAR band pass filter that can be easily embodied in single chip, and a method for manufacturing the same are disclosed. The duplexer of a mobile communication device includes a transmitting band pass filter, formed on an upper portion of a substrate, having at least two... Agent: Rabin & Berdo, Pc

20080143458 - Filter element and method for manufacturing the same: A filter element includes a flat dielectric substrate, a ground electrode on a back main surface of the dielectric substrate, resonant lines each having a shorting end in the vicinity of a border between a side of the dielectric substrate and the ground electrode and extending from the side to... Agent: Murata Manufacturing Company, Ltd. C/o Keating & Bennett, LLP

20080136547 - Filtering apparatus for correcting variation of cr-product: A filtering apparatus includes a main filter, a variation detection circuit, and a variation correction circuit. The variation detection circuit includes a reference filter having at least one resistor and at least one capacitor, detects a variation of CR-product based on the resistor and the capacitor of the reference filter... Agent: Wenderoth, Lind & Ponack L.l.p.

20080136548 - Impedance matching device of sensor node and impedance matching method of sensor node: Provided are an impedance matching device of a sensor node and an impedance matching method of a sensor node. The impedance matching device comprises: a variable impedance matching unit disposed between a transmission unit, which is used for modulating a received signal to a radio frequency (RF) signal and outputting... Agent: Rabin & Berdo, Pc

20080136565 - Waveguide transitions and method of forming components: A waveguide transition for transitioning from an overmoded waveguide to another waveguide is provided, where one end of the waveguide is configured to connect to a rectangular waveguide and the other end is configured to connect to an elliptical waveguide. The transition has an internal shape having top and bottom... Agent: A. Sidney Katz

20080136550 - Line transition device, high-frequency module, and communication apparatus: A line transition device that includes a waveguide and a microstrip line. The microstrip line is substantially orthogonal to an electromagnetic wave propagation direction in the waveguide. A choke groove crosses the microstrip line. A coupling conductor provided at a tip of the microstrip line is positioned at a terminal... Agent: Dickstein Shapiro LLP

20080136549 - Rectangular waveguide cavity launch: An apparatus and method relating to a rectangular waveguide cavity launch are disclosed that enable coupling an electromagnetic wave from the top surface of a waveguide distribution network formed into a conductive plate with the narrow wall of a rectangular waveguide facing the top of the conductive plate. A resonant... Agent: Canady & Lortz LLP - Boeing

20080136551 - Carbon nanotube litz wire for low loss inductors and resonators: An upper frequency-range circuit (160) includes a load element (168) exhibiting a capacitive load impedance. A first matching network (166) includes at least one nano-scale Litz wire (100) inductor. The first matching network (166) exhibits an inductive reactance that nominally matches the capacitive load reactance. An electrical conductor for providing... Agent: Bryan W. Bockhop, Esq. Bockhop & Associates, Llc

20080136553 - Method and divider for dividing power for array antenna and antenna device using the divider: Disclosed herein are a method and divider for dividing power between and supplying the parts of the power to respective radiation elements of an array antenna, and an antenna device using the divider. The division method includes the steps of dividing power, applied to a feeding unit, into two parts... Agent: Jackson Walker LLP

20080136552 - Microwave module having converter for improving transmission characteristics: Provided is a microwave module having a converter for improving transmission characteristics in a millimeter-wave band. When a microstrip transmission line and a conductor-backed coplanar waveguide (CBCPW) transmission line are connected by wire bonding, a change in impedance caused by wire bonding and an abrupt change in electric field components... Agent: Rabin & Berdo, Pc

20080136554 - System, microwave switch and method for hot standby of radio frequency power amplifier: Systems and methods for hot standby of radio frequency (RF) power amplifier are disclosed, an auxiliary RF power amplifier is added and SPDT microwave switches are adopted at the input and output sides of primary RF power amplifiers to control whether to make the auxiliary RF power amplifier function. When... Agent: Ladas & Parry LLP

20080136555 - Frequency shunt: A frequency separating unit includes an antenna unit, a first signal path, a second signal path, a first band-pass filter in the first signal path, a second band-pass filter in the second signal path, and a matching circuit between the antenna unit and the second band-pass filter in the second... Agent: Fish & Richardson Pc

20080136556 - Branching filter package: A branching filter package has a SAW filter chip housing area which houses a piezo electric base, on which a transmitting SAW filter and a receiving SAW filter having a different frequency passing band with each other, are formed, and an impedance matching circuit and a branching circuit for the... Agent: Venable LLP

20080136559 - Electronic device and rf module: A parallel resonant circuit is realized by stacking first to fourth wiring patterns each having at least an inductance element. One of the adjacent first and second wiring patterns is set to a signal input node and the other thereof is set to a signal output node. Then, the signal... Agent: Mattingly, Stanger, Malur & Brundidge, P.c.

20080136558 - High-frequency circuit in which high-frequency filter is parallel installed to integrated circuit: The present invention provides a high-frequency circuit capable of acquiring the original transmission characteristics of a filter by preventing capacitive coupling between input and output terminals of the filter externally attached to the integrated circuit and effectively using a mounting space. The high-frequency circuit includes a rectangular integrated circuit 10... Agent: Beyer Weaver LLP

20080136557 - Switch circuit: A switch circuit includes: a first input and output terminal; a first inductor connected with the first input and output terminal; a capacitor connected with the first inductor; a second input and output terminal connected with the capacitor; a first MEMS switch connected with one end of the capacitor; a... Agent: Birch Stewart Kolasch & Birch

20080136560 - Multi bandpass single-input single-output radio frequency filters: A multi-band band pass filter, including: first and second multi-order asynchronous resonators connected to each other by a coupling resonator and connected to respective first and second matching resonators, the first matching resonator connected to a signal-in terminal and second matching resonator connected to a signal-out terminal respectively; a first... Agent: Schmeiser, Olsen & Watts

20080136561 - Multilayer electronic component: A multilayer electronic component has: a first capacitive electrode layer of a rectangular shape on which four capacitive electrode portions are formed at four comers; and a ground electrode layer which is laid on the first capacitive electrode layer and on which a ground electrode is formed so as to... Agent: Oliff & Berridge, Plc

20080136563 - Electromagnetic composite metamaterial: An electromagnetic composite metamaterial including an electromagnetic medium and a plurality of spaced electromechanical resonators disposed in or on the electromagnetic medium configured to control electromagnetic wave propagation properties in the electromagnetic composite metamaterial.... Agent: Iandiorio & Teska Intellectual Property Law Attorneys

20080136564 - Mechanical filter for sensors: An arrangement of material layers designed and utilized as a filter to mechanical waves entering a sensor. To isolate the sensor, the filter can be designed to attenuate specified frequencies that could propagate from the environment and into the sensor. Provided there is a difference in the mechanical impedance between... Agent: Nancy Ann Winfree

20080136562 - Method and micro power generator for generating electrical power from low frequency vibrational energy: A method and a micro power generator for generating electrical power from low frequency, vibrational energy includes a frequency up-conversion process. The generator is preferably an electromagnetic, vibration-to-electrical power generator which can efficiently scavenge energy from low frequency external vibrations. The generator up-converts low frequency environmental vibrations to a much... Agent: Brooks Kushman P.c.

20080136566 - Signal transmission line for millimeter-wave band: Provided is a signal transmission line for a millimeter-wave band. The signal transmission line includes: a dielectric substrate; an input line formed on the dielectric substrate; a pair of serial transmission lines formed on the dielectric substrate, the serial transmission lines being branched at, separated from, and electromagnetically connected in... Agent: Townsend And Townsend And Crew, LLP

20080129407 - Impedance matching apparatus: An impedance matching apparatus 3 calculates a forward wave voltage Vfo and a reflected wave voltage Vro at an output terminal 3b, based on a forward wave voltage Vfi and a reflected wave voltage Vri at an input terminal 3a, on information on variable values of variable capacitors VC1, VC2... Agent: Hamre, Schumann, Mueller & Larson, P.c.

20080129423 - 3-port orthogonal mode transducer and receiver and receiving method using the same: Provided are a 3-port orthogonal mode transducer, and a receiver and receiving method using the same. The 3-port orthogonal mode transducer includes: a transmission port having a rectangular shape elongated in a horizontal direction and configured to transmit a Ka-band (30 GHz) vertical polarization signal; a first reception port having... Agent: Cantor Colburn, LLP

20080129408 - Millimeter waveband transceiver, radar and vehicle using the same: In a millimeter waveband transceiver using an antenna and a waveguide for a connection line, it is necessary to perform transmission mode line conversion between TEM waves of a microstrip line and VTE01 mode waves of the waveguide. There is a limit to reducing the conversion loss using only a... Agent: Miles & Stockbridge Pc

20080129409 - Waveguide structure: When a microstrip line is connected with a waveguide, there is a limit to reducing the connection loss by using only a matching box. We have discovered that in a transmission mode line transducer for converting between the TEM waves of the microstrip line and the TE01 waves of the... Agent: Miles & Stockbridge Pc

20080129410 - Matching circuit and multi-band amplifier: A matching circuit includes a demultiplexer for demultiplexing a signal outputted from an amplification device into signals of respective frequency bands, and at least two matching blocks which are connected to the demultiplexer, are respectively fed with the signals of the respective frequency bands, and perform impedance matching in the... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.c.

20080129412 - Acoustic wave filter and manufacturing method of the same: A technique capable of integrally forming SMR type acoustic wave filters corresponding to multiple bands on the same chip at low cost is provided. In SMR type acoustic wave filters including multiple bandpass filters corresponding to multiple bands formed over the same die (substrate), acoustic multilayer films are formed without... Agent: Townsend And Townsend And Crew, LLP

20080129411 - Band reject filters: Band reject filters are disclosed. A band reject filter includes a first acoustic resonator and a second acoustic resonator, each of which has either shunt resonators adapted to resonate substantially at respective resonance frequencies defining a rejection frequency band or series resonators adapted to anti-resonate substantially at respective anti-resonance frequencies... Agent: Smart & Biggar P.o. Box 2999, Station D

20080129413 - Branching filter package: A branching filter package has a SAW filter chip housing area which houses a piezo electric base, on which a transmitting SAW filter and a receiving SAW filter having a different frequency passing band with each other, are formed, and an impedance matching circuit and a branching circuit for the... Agent: Venable LLP

20080129414 - Resonator structure and method of producing it: In order to provide a resonator structure (100) in particular a bulk-acoustic-wave (BAW) resonator, such as a film BAW resonator (FBAR) or a solidly-mounted BAW resonator (SBAR), comprising at least one substrate (10); at least one reflector layer (20) applied or deposited on the substrate (10); at least one bottom... Agent: Nxp, B.v. Nxp Intellectual Property Department

20080129415 - Piezoelectric resonator, method of manufacturing the same and electronic part using the same: The object of the present invention is to provide a piezoelectric resonator of which vibration frequency can be accurately adjusted and the adjustment accuracy of the vibration frequency can be improved. The piezoelectric resonator of the present invention includes an vibrating arm extended from a base, and a metal film... Agent: Jordan And Hamburg LLP

20080129416 - Switchable filter with resonators: A switchable filter may include a first acoustic resonator including first electrodes, and a first resonant layer between the first electrodes and having electrostrictive material. The switchable filter may further include a second acoustic resonator including second electrodes, and a second resonant layer between the second electrodes and having electrostrictive... Agent: Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.a. 1401 Citrus Center

20080129417 - Ladder type filter: A ladder filter includes a series resonator having a first film laminate in which an upper electrode and a lower electrode face each other across a piezoelectric film, and a first film provided on the first film laminate, and a parallel resonator having a second film laminate having a structure... Agent: Arent Fox LLP

20080129418 - Acoustic wave device and filter using the same: An acoustic wave device includes a piezoelectric substrate, a resonator having comb electrodes that are provided above the piezoelectric substrate and excite an acoustic wave, and a capacitor that is provided above the piezoelectric substrate and is connected in series or parallel with the resonator, the capacitor including electrodes that... Agent: Arent Fox LLP

20080129419 - Dual-mode dual-ring band-pass filter: The present invention relates to a dual-mode dual-ring band-pass filter, which includes a first half-ring resonator, a second half-ring resonator, and a third half-ring resonator. The second half-ring resonator is located inside the opening of the first half-ring resonator. Both ends of the second half-ring resonator connect to both ends... Agent: Rosenberg, Klein & Lee

20080129420 - Embedded antenna and filter apparatus and methodology: Apparatus and methodology are disclosed for providing effective transmission of data to and/or from an electricity meter by providing embedded radio frequency components. An antenna and stripline or microline filter arrangement are provided as embedded components in association with a transmitter or transceiver portion of the electricity meter's metrology circuitry... Agent: Dority & Manning, P.a.

20080129421 - Selectable notch filter: According to one exemplary embodiment, a selectable notch filter includes a transmission line, a bias circuit, and a switch for selectably coupling the transmission line to ground. In one embodiment, the switch is a PIN diode. The selectable notch filter can selectably suppress a first frequency from being output when... Agent: Farjami & Farjami LLP

20080129422 - Tunable or re-configurable dielectric resonator filter: A dielectric resonator filter having at least two poles for filtering a frequency band from an input frequency spectrum, which filter comprises (i) a body (2a, 2b) formed of electrically conductive material, which body (2a, 2b) defines a cavity (13) therein; (ii) a dielectric resonator element (1) enclosed in said... Agent: Mintz Levin Cohn Ferris Glovsky & Popeo Attn: Patent Intake Customer No. 35437

20080129424 - Negative capacitance synthesis: Provided herein are negative capacitance circuits for reducing distortion resulting from a gate-source (or base-emitter) capacitance of an output stage. Such a negative capacitance circuit is connected in parallel with the gate-source (or base-emitter) capacitance ofthe output stage to shunt the gate-source (or base-emitter) capacitance and thereby reduce distortion.... Agent: Fliesler Meyer LLP

20080129425 - Electric switching device comprising magnetic and/or fluidic adjusting elements: An electrical switching device, especially a high-frequency switching device, with an oblong, electrical switch element, which is arranged with one contact end between two counter-contact elements with a transverse distance from one another, and which can be moved transversely relative to its longitudinal direction optionally towards the one or the... Agent: Marshall, Gerstein & Borun LLP

20080129426 - High isolation tunable mems capacitive switch: The systems and methods described herein provide for a radio frequency micro-electromechanical systems switch having two or more resonant frequencies. The switch can be configured as a capacitive shunt switch having a deflectable member coupled between two electrodes over a transmission line. A first insulator can be located between one... Agent: Orrick, Herrington & Sutcliffe, LLP Ip Prosecution Department

20080129427 - High-isolation switching device for millimeter-wave band control circuit: Provided is a high-isolation switching device for a millimeter-wave band control circuit. By optimizing a cell structure to improve the isolation of an off-state without deteriorating the insertion loss of an on-state, it is possible to implement a high-isolation switching device useful in the design and manufacture of a millimeter-wave... Agent: Rabin & Berdo, Pc